Button-setting machine.



S. L. SNHERSON.

BUTTON SETTING MACHINE.

APPLlCATION FILED OCT. 8, 1913.

Patented July 9, 1918 5 SHEETS-SHEET '1.

l WT/VESSES 6 I Wm fi/W S. L. SNEIERSON.

BUTTON SETTING MACHINE.

APPLICATION FILED OCT. 8,1913- 1 ,27 1 ,789. I Patented July 1918.

5 SHEETSSHEET 2.

920. f5. WWS f7? SM SWW S. L. SNEiERSON.

BUTTON SETTING MACHINE.

APPLECATION FI'LED 001. a, 1913.

1 71,789. Patented July 9, 1918.

5 SHEETS-SHEET 3.

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S. L. SNEIERSON.

BUTTON SETTING MACHINE.

APPLICATION FILED OCT- 8. 1913- 1 ,271,789. Patented July 9, 1918.

5 SHEETS-SHEET 5- KM? 30] {300 j] A TTV.

SAMUEL L. SNEIEBSON, OF BOSTON, MASSACHUSETTS, ASSIGNOR T0 INDEPENDENT BUTTON FASTENEB MACHINE COMPAN Y, A CORPORATION OF MASSACHUSETTS.

BUTTON-SETTING MACHINE.

Specification of Letters Patent.

Patented July 9, 1918.

Application filed October 8, 1913. Serial No. 794,154.

To all whom it may concern:

Be it known that I, SAMUEL L. SNEIERSON, a citizen of the United States, residing at Boston, county of Sufi'olk, Commonwealth of Massachusetts, have invented certain new and useful Improvements in Button- Setting Machines, of which the following is a specification.

My present invention involves certain improvements in button setting machines and as a whole is a. development and perfection of the Stenman machine of United States Letters Patent No. 1,057 ,89 1.

In this machine the wire is supplied from coils from which the staples are cut as the buttons are successively fed from the hopper.

The improvements reside in the several novel constructions which appear in my present machine and which combine to secure a uniform, accurate and commercially efficient machine capable of that rapid operation required in the modern factory where certainty and consistency are essential to the system.

The principles involved in the several elements of my machine as well as the manner of their combined action will be more fully set forth in the following specification. In the drawings I have shown in detail the form of my machine which I have foundcommer'cially satisfactory. Like reference numerals are correspondingly used throughout both specification and drawing in which latter,

Figure 1 is a side view of my machine as seen from the left.

Fig. 2 is a front view of the upper part of the machine, the base being broken away.

Fig. 3 is a plan view of the head of the machine with part of the feed train shown in dotted lines.

Fig. 4 is a vertical section, front to rear taken on the indicated line H of Fig. 2.

Fig. 5 is a partial front view of the head with cover and anvil removed.

Fig. 6 is a plan view of the head on slightly larger scale and with the cover removed. 1

Fig. 7 is a vertical section on the indicated line 77 in Fig. 3 in greater enlargement.

is re u l 8. .69 on the l Fig.

having a removable Fig. 9 is a transverse vertical section viewed from the front and on the line 9-9 of Fig. 3, and

Fig. 10 is an enlarged plan detail of the actuating slide and counting and feeding mechanism.

Figs. 11, 12, and 13 are detail views of the forming and setting dies shown in Fig. 7,

13 being a section taken on the indicated line 18-13 of Fig. 12, and

Fig. 14 is a detail view of the latch for locking the button trapping slide against reciprocation under certain conditions.

Fig. 15 is a detailed view of a part of one of the dies shown in Fig. 7.

In the form of my machine which I have chosen for illustration I employ a supporting pedestal 1 having a suitable triple footing 2. The rear foot is extended slightly and to it is pivoted the main treadle 3 which works in the slotted guide 3 while below it is usually set the fulcrum plate of the clutch lever 4:. At the top of the pedestal 1 is a head base 5 which extends as a shelf about the machine. This base 5 is formed With a sill flange 6 which forms an inclined support for the casing of the head mechanism.

On the left of the base 5 is bolted a casting 7 which has a front to rear bearing 8 for the power shaft 9 and alined with it a trough 10 in which the worm 11 turns. The worm 11 drives the main gear 12 on the cross shaft 13 which turns in a transverse bearing 141 in the casting 7.

The opposite end of the shaft 13 has a bearing 15 in a plate 16 which forms a side of the head casing and supports the top plate 17. On the plate 17 is formed a support 18 for the button raceway 19. The buttons feed down this raceway 19 from the hopper 20. The hopper is bracketed on the left of the rear of the head and consists of a box with a cover 21. On the side of the hopper 20 is an inclined ledge 22 which slopes down to meet the raceway 19. The buttons are raised to this ledge 22 by a vertically reciprocating slide 23 having an inwardly beveled upper edge 21 on which the buttons are trapped as the slide rises through the loose buttons in the hopper.

On the front of the head is an anvil 25 block 26. A. gage 27 is adj ustably held to the anvil 25 by a set screw 28. This permits a relative adjustment according to the upper of the shoe being worked upon- Opposite the anvil 25 is formed a slide way 29iin which works the forming and setting slide 30 which carries the forming and setting dies. These dies are seen in Fig. 7 and appear in detail '11 11, 12', 13 and 15. here'the uppers are not all of uniform thickness it has been, found difiicult to properly set a button. I

overcome this by providing in addition to the central die 3Q two lateral dies 30", one on each side of the central die. The central die, near its forward end is grooved to rcceive and guide the buttons as they are fed from the raceway. Near its rear end the metal of both it and the lateral dies is transversely cut away as indicated to receive the upper engaging ends of the series of actuating levers 171, 172 and 173.

The drive of the central die 30 is direct from thelever 172. The drive of the two lateral dies 30 is from the levers 171 and 173 through an interposed actuating member 30 This member is in the form of a flat plate having its ends upturned and spaced (see Figs. 12 and 15) so as to straddle the central die. The upper ends of the levers 171 and 173 bear against therear upturned ends of the member 30 (see Fig. 15). The front upturned ends of this member are received in recesses 30 in the sides of the two lateral dies. These recesses are slightly wider than the width of the upturned ends so as to provide a free space in which these ends may have slight longitudinal play. In the recesses defined by the body of the central die, the rear upturned ends of the actuating member and the rear walls of the recesses 30 coiled springs 32 are seated.

These springs transfer the drive of the levers 171 and 173 to the two dies 30 The three dies are held together by an underneath bearing plate 30*, which partially backs the member 30 The purpose of this construction is to accommodate the drive of the two lateral dies .to variations in the thickness of the upper being worked upon. With the construction just described it is possible to compensate for nonuniformity in the thickness of the uppers through the member 30 In opera tion the central die first drives forward under the actuation of its lever 172. The lateral dies then come into play under the actuationof their levers 171 and 173 and the member 30 The action of the levers171 and 173 is to drive the member 30. forward. This movement of the member 30 is opposed by the coiled springs 32 which are stiff enough to prevent the member 30 moving forward under the ordinary actuation of the levers. lVhen the uppers are of uniform thickness therefore the springs receive and transmit the drive direct to the lateral dies. l/Vhere an upper is of nonuniform thickness it is necessary to compensate for the varia tion by varying the drive ofthe lateral dies. This is done through the actuating member 30 which automatically compensates for variations by moving up in the recesses 30 against the action of the coiled springs a distance proportionate to the variation in thethickness of the upper.

The effect of this compensating movement is to prevent the dies 30 from being driven farther forwardly by theinle'vers 171'and 173 after they have reachedthe material. The forward throw of the levers continues of course until their cams complete their actuating phase and enter their phase of nonactuation. This continuedfthrow, which would otherwise drive the dies forwardly against the material with sufficient force to injure it, is received and absorbed by the springs 32 of the member 31 and merely moves this member idly forward relative to the dies. The'springs 32 are stiff enough to prevent the forward ends of this member from reaching the opposed walls of the recesses 30 and thereby again driving' the dies forwardly. They also serve to return the member 30 to position after the levers 171 and 173 have reached the limit of their forward throw. The recesses'30 themselves are large enough to compensate for the thickest material likely to be worked upon.

In the path of the slide ;30 is a vertical slide way 31 in which the block 32 is worked. This block 32 carries at its upper end a bending bar 33 over which'the staple is formed and which is dropped below the level of the forming and setting slide 30 when that slide advances to set a button against the anvil block 26. e

To the right of the head is a spindle on which is mounted a wire reel 36. The wire W is drawn from this reel by a pair of feed rolls 37 and 38 which have intermeshing pinions 38 turned by gear 39. The gear 39 is rotated by the rearwardmovement ofa reciprocating slide 10 whichhas a pawl 11 yieldingly supported by a spring 42 so as to engage the teeth of the gear 39 in one direction and yield to pass when in its opposite reciprocation. The slide 10 also serves to operate the train of a recording or counting device consisting of a units? wheel 50, a tens wheel 51 and a hundreds wheel 52. The units wheel 50 is rotated step by step on the forward movement of the slide 10 by a tooth 13 held in engaging position by a spring 14. r

This counting train 50, 51 and 52 may cooperate in any well knownmanner asjby the pin 54 which gives the desiredr'elative'rotation. The hundreds? wheel 52 has'a spur 55 which is set opposite the One thousand mark and engages at that point laterally ally movable dog 57.

movable lever 56 which bears'upon a later- The dog 57 is pivotally and slidably mounted on a stud 58 being normally held out of contact. with the tooth 60 which is mounted on the main shaft 13 by a spring 59. Upon the one thousandth operation the spur 55 engages the lever 56 and moves the dog 57 against the action of the spring 59 so that it will be projected in the path of the tooth 60. This constitutes the locking movement of the machine.

The machine is unlocked by the slug S which constitutes a check for the feed of wire from the coil. To start the machine the slug S is dropped through a slot 61 formed in the upper plate 17 of the machine head. The slug drops from the slot 61 into a narrow channel 62 which is slightly inclined so that the slug will roll down toward the front of the machine. 7

In order to prevent fouling and in order to make perfect the operation of the slug a rammer 62 is provided which is drawn back prior to the deposit of the slug and is used to push the slug down the tube. At the lower end of the channel 62 is a stop pin 64 held down by the spring 66. The said stop may be raised by pulling the knob 65 against the action of the spring. This permits the slug S to drop down through the end of the tube 62 onto the front end of the dog 57, from whence it drops into a suitable receptacle disposed under the gear 39. This rocks the dog, disengaging the opposite end from the tooth 60 on theshaft.

Returning now to the operating mechanism of the machine and to the main shaft 13, the gear wheel 12 which has been described as mounted on the shaft 13. is loose thereon and is placed in positive relation to the shaft by the clutch 7 0.. The clutch has a sliding tooth 72 which engages with the corresponding tooth 12 faced in the opposite direction and formed on the outer face of the gear wheel 12.

The tooth 72 is reciprocated through the clutch member 70 by a lever 7 3.united at a pivot 75 and fulcrumed on a pin 74:. The lower end of the lever is held normally outward by the spring 76 and is beveled for engagement by the conical upper end ofa stop pin 7 7 The stop 77 is j ournaled in the plate 5 and is surrounded bya tubular eX- tension or sleeve within which the coils of the spring 78 are fitted. .The spring 78 bears at its lower end on the plate and at its upper end abuts a collar 80 formedon the stop 7 7 The stem 81 of the stop extends through the casing and is threaded at its lower eX- trennty to receive a .pair of lock nuts 82. The link 83 connects the stem 81 with the clutch treadle 4 at the base of the machine. Thetreadle 4 therefore controls the operation of the clutch when the machine is used as a power machine. The clutch is returned to initial position upon release of the treadle by a spring 83 When the machine is to be used as a foot power machine a separate clutch is employed which is operated by the treadle 3 and the cable 96. This clutch consists of a toothed head fixed on the shaft 13 by a set screw 91 and having beveled teeth 92 which are engaged by the sliding tooth 94 of a head 93 whi 'h is loose on the power shaft 13. This tooth 94 is forced into engagement with the teeth 92 by a spring 95. In order to operate the machine under foot power the cable 96 is pulled by the depression of the lever 3. In this direction of rotation, the tooth 91 en gages the abrupt face of the inclined teeth 92 holding the two members of the clutch togcther. The rotation of the member 93 is opposed by the detention of a spring 100 attached at its lower end to a hook formed on the base and numbered 101. The upper end of the spring 100 is attached to a cable 102 which is wound on the top part of the clutch member 93 in a direction opposite to the the Winding of the cable 96. Upon the releaseof the treadle 3 the spring 100 returns the clutch to its initial position during which action the tooth 94 rides back over the inclined faces of the teeth 92 on the member 90. The machine is therefore operated step by step by this operation either under mechanical or under foot power.

The actuation of the several slides and the operating parts of the machine is effected by cams mounted on the power shaft '13. Beginning at the right of the machine and referring to Fig. 9 it will be noted that the cam 142 is mounted on to the shaft 13 adjacent to its bearings 11-. This cam rocks a lever 140 pivoted on a stud 141. The lever which is best illustrated in Fig. 8 has an extension or hook for receiving the bearing of the cam 142 at two points in its revolution so that the lever will be positively moved in both directions. The upper end of the lever is formed with an ear 144: which engages a recess in the slide 40. The slide 40 is there- 1 fore reciprocated back and forth upon each rotation of the shaft to perform its function of operating the counting train 50, 51, and 52 and the wire feed train 39 and 38 Beyond the clutch members 90 and 93 on the shaft 13 is splined a group of cams 150 160, 165,170, 175, 180 and 185. The functions of these several cams will be pointed out more specifically in connection with the description of the several parts which they operate. v

Within this portion of the head is an internal casting 200 formed with a slideway 201 and which forms a part of an inner wall or partition within the casing. It is cut away about the hub of the clutch member 90 as indicated at 202 and is also cut out on the opposite side as indicated at 203. The trans verse view of thiswall is best shown in Fig. 9 but in the longitudinal section Fig. 7 cut out portionsv may. be'seen. It is upon this wall that the dog 57 is pivoted. In the slideway 201 is mounted a slide 210. Th1s slide is moved forward by a lever 151 under the action of the cam 150. The lever 151 is pivoted 011 a transverse stud 204 j ournaled inthe opposite side walls of the slideway 10 201.

The cams 160, 165 and 170-co6perate with a series of three levers 171, 17 2 and 173, all pivoted on a transverse pin 174 mounted in the opposite side walls of the casting 200 1n front of the stud 204. All the levers receive their initial, actuation from the slide 210 Which, engages their lower ends and rocks the levers until their cam engaging faces come into position to be engaged by the se 20 ries of cams, (see Fig. 7). The cam 160engages the projecting face of the lever 171 and causes. the upper end of the lever which engages in the cleared space of one of the lateral dies 30 to reciprocate said die. The cam 165 similarly engages the central lever 172 and causes it to reciprocate the central forming die 30, and the cam 170 engages the lever 173 on the other side of lever 172 and causes it to reciprocate the coiiperating lateral forming dieof the slide. The cams 160, 165, and 170 with the levers 171, 172 and 173 therefore constitute the means for actuating the forming and setting slide 32.

The cam 175 engages the depending tooth 176 of the lever '177 which reciprocates the vertically acting former-slide 32. This lever is pivoted to the side wall of the casting 200 and has its forward end forked at 178 to engage a lateral pin 179 on the former slide 40 32. At its rear end the lever 177 carries a coil spring 181 which is hooked over the transverse stud 204 on which the lever 151 is pivoted.- The cam 175 and lever 177 therefore constitute the means for actuating the vertically acting former 32.

The cams 180, and 185 are fastened to each other as shown in Fig. 9. The cam 180 actuates a lever 182 which is pivoted onthe same pivot as the lever 17 7 but is disposed without the lateral wall of the casting 200. This lever 182 has its rear end formed as a hook 183 in which fits the rear end of a co6perating lever 184 which has a hole at its front end for engagement with a-pin on a vertically acting button pusher and guide220.

The last named lever 184 is under the tension of a coil spring 186 (see Fig. 4) and assists with the lever 182 to oscillate the pusher relative to the raceway. The pusher is reciprocated vertically, by another lever 187 pivoted beneath the lever 184 to the outer side of the wall of the casting 200 and having its forward end cut out to provide an engaging portion lying directly below the lower end of the pusher and its rear end cut out to provide an engaging portion disposed for actuation by the last cam'185 of the se-' ries of cams. The cams 180, and 185 with the levers 182, 184 and 187 therefore constitute themeansfor oscillating and recipro cating the pusher 220..

Describing now the pusher 220. The purpose of this pusher is to secure a positive feed of buttons and to insure the proper alinement of the button loop with the wire which is to be threaded through it. This pusher is mounted in a slideway adjacent to the lowerend of the button raceway and slightly to the left as indicated in Fig. 3. The pusher is formed as a vertical slide havv ing an overhanging arm 221 with: a cup shaped end adapted to slide down over the headof the button. At its lower end it has an elongated vertical slot 222 and works on a pin projecting into said slot from the wall of the casting 200. The action of this pusher is first upward and to the rear, extending over the head of the button and moving forward carrying the button with it and then up again to release the button when it is in proper position. A side view of this pusher with the connections by which it is operated may be seen in Fig. 4.

To reciprocate the button feeder 23 which works in the hopper I fasten a curved lever 210' to the stud on which the hooked lever 182 is pivoted so as to lie in actuatable position relative to the cam 185. This lever at its rear end is slotted at 211 and in this slot works a pin 212 on the feed slide 23. Inorder to prevent automatic feed of buttons from the hopper by the slide 23, as for example where it is desired to feed buttons of a difi'erent size by hand directly into the raceway,-I rovide a locking pawl 213 (Fig. 4) for "the lever 210. This pawl is pivoted to the outer face of the casing which covers the rear end of the machine head and has a portion of its end cut away to provide a tooth adapted when swung into engaging position to lie against the lever in such a way as to prevent its rocking. When it is desired to prevent reciprocation of the button trapping slide 23, the slide is lifted up to clear the lever 210' of its cam 185 and r is then propped up in raised position by the pawl 213. The lever 210 is therefore disposed out of the path of rotation of the cam 185, and the cam simply rotates idly with the rotation of the drive shaft;

When the machine is set up for operation a number of slugs are given the workman. The slug box is of course empty and the counting mechanism set at zero. The machine is then sealed. The operator first fills the button hopper with buttons and places a reel of wire on the spindle 35, feeding the wire through an opening in the casing to the feed rolls'37 and 38, and from thence into the path of the setting and forming slide 30. A

down the raceway to slug is then deposited in the chute 61 and rammed home with the rammer 62 until it reaches the stop pin 64: which is then raised to allow the slug to drop onto the dog 57 This rocks the dog and disco gages the opposite end from the tooth 60 on the shaft 13. The spring 59 now comes into play and keeps the dog clear of the tooth until the shaft 13 has been rotated one thousand revolutions to set one thousand buttons. At that time the counting mechanism which has been recording every button set actuates the dog to return it to original position. This is done through the spur 55 on the hundreds wheel which is set opposite the one thousand mark and engages at that point the laterally movable lever 56 which bears upon and projects the dog 57 against the action of the spring 59, into the path of the tooth 60, thus automatically locking the machine against operation until another slug has been deposited.

We will assume first that the machine is operating under foot power, although it will be understood that the action as to the looking and counting mechanisms is the same whether footor mechanical power is used.

The first cam to operate when the treadle 3 is depressed is the cam 185 which through the lever 210 raises the button trapping slide 23 through the loose buttons in the hopper and deposits several buttons on the inclined ledge 22 from whence they feed the forming and setting slide 30. The next cam to come into action is the cam 1 12 which through lever 1&0, reciprocates the slide 40 which operates both the wire feed and counting mechanisms. .In the meantime, the cam 180 comes into action and through the levers 182 and 184 raises the button pusher 220, which grasps the headof the button and guides it toward the, former slide 32 which is being raised. The cam 17 5 now comes into action and through the lever 17 7 raises the former slide 32 over which the staple is formed. This slide is dropped below the level of the forming and setting slide 30 when that slide advances to set a button against the anvil block 36. The mechanism for actuating the slide 30 comes into action almost simultaneously with that for the slide 32 but is retarded slightly in order to give the slide 32 time to withdraw from its path. The slide 210 controls the action of the slide 30 and receives actuation from its cam 150 through the lever 151. This movement is transmitted by the slide 210 engaging the. lower ends of the series of three levers 171, 172, and 173 (see Fig. 7 and rocking these levers on their pivots until their cam engaging faces come into position to be actuated by the series of cams 160, 165 and .170. These levers therefore advance the slide 30, which carries the series of forming and setting dies,toward the anvil and in a direction at right angles to the wire feed as soon as the slide 32 is retracted.

These operations are continued until one thousand buttons have been set whereupon the machine automatically locks itself through the dog 57 and tooth 60 and can only be restarted by depositing another slug.

The operation where mechanical rather than foot power is used is practically the same, except that instead of applying both the power and the clutch from the same treadle as is done where foot power is used, a separate clutch and clutch 'treadle is used and the power is applied through pulleys mounted on the power shaft 9.

Various other modifications in the form, principle and construction of my invention as may suggest themselves from time to time may obviously be resorted to within the limits of the appended claims.

What I therefore claim and desire to secure by Letters Patent is 1. In a button setting machine a frame, a'shaft rotatable therein, an operating mechanism for said shaft, a button pres nting and setting mechanism actuated from said shaft, a wire feed having a gear train and cooperating with said setting mechanism, and an actuating mechanism for said wire feed including a cam on said rotatable shaft, a lever cotiperating with said cam, a slide disposed for reciprocation by said lever and 'a pawl on said slide directly engaging a gear wheel of the gear train of the wirefeed and effective during one phase of its reciprocation and ineffective during another phase of its reciprocation.

2. In a button setting machine a frame,

' a shaft rotatable therein, an operating mechanism within the control of the operative for actuating said shaft, a button presenting and setting mechanism actuated from said shaft, a wire feed having a gear train, a counting mechanism coiiperating with said setting mechanism and without the control of the operative and an actuating mechanism for both the wire feed and the counting mechanism including a cam on said rotatable shaft, a lever co'ciperating with said cam, a slide disposed for reciprocation by said lever, means on said slide for actuating the counting mechanism and a pawl on said slide for directly engaging a gear wheel of the gear train of the wire feed.

3. In a button setting machine, a frame, a shaft rotatable therein, an operating mechanism for said shaft, a button presenting and setting mechanism actuated from saidshaft, a button pusher co6perating with said mechanism, and an actuating mechanism for said pusher including a cam on the rotatable shaft, a lever cooperating with said cam and formed wlth a hooked end a second lever engaging said hooked end and said pusher, a

coperating cam on said shaft fixed to said first-named cam and a lever cooperating with said last-named cam and engaging said pusher.

:fIn a button setting machine, a shaft, a mechanism for successively presenting and setting a plurality of buttons to any suitable material, an actuating mechanism for said setting mechanism operable from said shaft, a counting mechanism cooperating with said presenting and setting mechanism to registerthe number of buttons set thereby, an actuating mechanism for said counting mechanism also operable from said shaft, and a locking and releasing mechanism for said register actuating mechanism including a tooth on said shaft, and a dog normally disposed without the path of said tooth and arranged to be projected into the path of said tooth at a predetermined time by said counting mechanism to lock said shaft.

5. In a button setting machine a shaft, a mechanism for successively presenting and setting a plurality of buttons, means operable from said shaft to actuate said setting mechanism, a counting mechanism cooperating with said setting mechanism to register the number of buttons set, means also operable from said shaft to actuate said counting mechanism, a locking and releasing mechanism for said shaft, a button pusher device cooperating with said setting mechanism, andan actuating mechanism for said pusher including a cam on said shaft, a lever cooperating with said cam, a second lever engaging said first named lever and said pusher, a second cam on said shaft fixed to said first cam, and a lever cooperating with said last named cam and engaging said pusher.

- 6. In a'button attaching machine,in combination, a die having a recess of suflicient length'to compensate for variations in the 7 thickness of'the material being worked upon, 45 V the forward end of said recess constituting a forward drlvlng face, an actuator for said 'die'including a member slidable relative to said die and having a forward portion disposed in the recess of the die, and a spring opposing movement of said member relative to the die until-the attainment of a predetermined pressure and' upon such attainment yielding to allow said memberto move forwardly untilits forward portion abuts said forwarddriving face of the die recess and ,by reason of such abutment drives the die forward-1y. I 7. --In a button attaching machine, in -combination, a die having a recess of-sufficient length to compensate for variations in the ('thickness of the materialbeing worked upon,

the forward end of said recess constituting a forwarddri-vmg face and'the-rear end constituting arearward returning'face, an actuator for said die including a plateslidable relative to said die and having a-forwardi portion extending from the plane'o-ffthe plate and disposed in the recess of the die, and a spring opposing movement of said plate relative to the die until the attainment of a predetermined pressure and upon such attainment yielding to allow said plate to move forwardly until its forward portion abuts said forward driving face of'the die recess and by reason of such abutment'drives the die forwardly, and said spring in the return of the parts movingsaid forward portion of the plate against said rearward returning face of the die recess whereby to carry the die rearwardly in the rearward movement of the plate.

8. In a'button setting machine, a series of forming dies, means for actuating said dies, and a compensating device for varying the drive of certain of said'dies, said compensating device comprising aplate havingupturned ends, the forward upturned endsof said plate having an engagement with certain of said dies, and resilient members associated with said plate and engaging certain of saiddies and normally effective to receive the actuation imparted to said plate and transmit it-to said dies-but capable of yield.- ing under certain conditions to permit said plate to move relative to said dies'without advancing said dies directly.

I 9. In a button setting machine, a series of forming dies, means for actuating said dies, and a. compensating device for varying the drive of certain of said dies, said compensating device comprising a plate having upturned ends, the forward upturned ends of said plate having a sliding engagement with certain of said dies,- and'res'ilient members bearing against the. rear upturned'ends of said plate and engaging certain'of. said dies and normally eflectlve to receive the actuation imparted to said plate and transmit it to said dies but capable of yielding under certain conditions to permit said plate to move relative to said dies without advancing said dies. 7 7 V 10. In a button setting machine incombination with a central die and lateral dies and their actuating mechanism, a plate arrelative to said-dies under said actuation without transmitting movement thereto, and springs disposed between an 'endof said plate'and portions of said lateral 'dies and opposing movement of said plate until'tthe attainment of a predetermined pressure, "but 'yieldlng to allow sald movement when said pressure is attained. V 11. In a button setting machine in 'c'ombin'ation, a central die, lateral dies having each a'recess ofsufficlent length-to'compeir' 130 sate for variations in the thickness of the material being worked upon, actuating mechanism for said dies, a plate having front and rear projections and said front projections disposed for movement in said recesses, said plate adapted to receive the actuation of said die actuating mechanism and transmit it to said lateral dies, but capable of moving relative to said dies under said actuation without transmitting movement thereto, and springs disposed between the rear projections of said plate and portions of said lateral dies and opposing movement of said plate until the attainment of a predetermined pressure, but yielding to allow said movement when said pressure is attained.

12. In combination, a pair of lateral bending bars, and a driver arranged therebetween, independent actuating devices for said driver and bending bars, and a device adapted to normally receive the actuation of the actuating device for the bending bars and transmit it to said bars to drive them forwardly continuously throughout their entire movement, but capable of moving relative to said bending bars under the said actuation without transmitting forward movement thereto.

In testimony whereof I aflix my signature in presence of two witnesses.

SAMUEL L. SNEIERSON.

Witnesses MARION 0. Homes, VICTORIA LONDEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

